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Diffstat (limited to 'gcc/config/mips/iris6.h')
| -rw-r--r-- | gcc/config/mips/iris6.h | 279 |
1 files changed, 279 insertions, 0 deletions
diff --git a/gcc/config/mips/iris6.h b/gcc/config/mips/iris6.h new file mode 100644 index 00000000000..ea710257274 --- /dev/null +++ b/gcc/config/mips/iris6.h @@ -0,0 +1,279 @@ +/* Definitions of target machine for GNU compiler. Iris version 6. + Copyright (C) 1994 Free Software Foundation, Inc. + +This file is part of GNU CC. + +GNU CC is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU CC is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GNU CC; see the file COPYING. If not, write to +the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ + +/* Irix 6 uses DWARF. */ +#define DWARF_DEBUGGING_INFO +#define PREFERRED_DEBUGGING_TYPE DWARF_DEBUG + +/* Default to -mips4. */ +#define TARGET_DEFAULT MASK_ABICALLS|MASK_FLOAT64|MASK_64BIT +#define MIPS_ISA_DEFAULT 4 + +#include "mips/iris5gas.h" +#include "mips/abi64.h" + +/* Irix 5 stuff that we don't need for Irix 6. */ +#undef ASM_OUTPUT_UNDEF_FUNCTION +#undef ASM_OUTPUT_EXTERNAL_LIBCALL +#undef ASM_DECLARE_FUNCTION_SIZE + +/* Stuff we need for Irix 6 that isn't in Irix 5. */ + +#undef SET_ASM_OP /* Has no equivalent. See ASM_OUTPUT_DEF below. */ + +/* This is how to equate one symbol to another symbol. The syntax used is + `SYM1=SYM2'. Note that this is different from the way equates are done + with most svr4 assemblers, where the syntax is `.set SYM1,SYM2'. */ + +#define ASM_OUTPUT_DEF(FILE,LABEL1,LABEL2) \ + do { fprintf ((FILE), "\t"); \ + assemble_name (FILE, LABEL1); \ + fprintf (FILE, " = "); \ + assemble_name (FILE, LABEL2); \ + fprintf (FILE, "\n"); \ + } while (0) + +#define POPSECTION_ASM_OP ".popsection" + +/* To enable use of init and fini sections. */ +#define INIT_SECTION_ASM_OP ".section\t.init" +#undef LD_INIT_SWITCH +#undef LD_FINI_SWITCH +#undef HAS_INIT_SECTION + +#define DEBUG_SECTION ".debug,1,0,0,1" +#define LINE_SECTION ".line,1,0,0,1" +#define SFNAMES_SECTION ".debug_sfnames,1,0,0,1" +#define SRCINFO_SECTION ".debug_srcinfo,1,0,0,1" +#define MACINFO_SECTION ".debug_macinfo,1,0,0,1" +#define PUBNAMES_SECTION ".debug_pubnames,1,0,0,1" +#define ARANGES_SECTION ".debug_aranges,1,0,0,1" + +#undef ASM_SPEC +#if ((TARGET_CPU_DEFAULT | TARGET_DEFAULT) & MASK_GAS) != 0 +/* GAS */ +#define ASM_SPEC "\ +%{mmips-as: \ + %{!.s:-nocpp} %{.s: %{cpp} %{nocpp}} \ + %{pipe: %e-pipe is not supported.} \ + %{K}} \ +%{G*} %{EB} %{EL} %{mips1} %{mips2} %{mips3} %{mips4} %{v} \ +%{noasmopt:-O0} \ +%{!noasmopt:%{O:-O2} %{O1:-O2} %{O2:-O2} %{O3:-O3}} \ +%{g} %{g0} %{g1} %{g2} %{g3} \ +%{ggdb:-g} %{ggdb0:-g0} %{ggdb1:-g1} %{ggdb2:-g2} %{ggdb3:-g3} \ +%{gstabs:-g} %{gstabs0:-g0} %{gstabs1:-g1} %{gstabs2:-g2} %{gstabs3:-g3} \ +%{gstabs+:-g} %{gstabs+0:-g0} %{gstabs+1:-g1} %{gstabs+2:-g2} %{gstabs+3:-g3} \ +%{gcoff:-g} %{gcoff0:-g0} %{gcoff1:-g1} %{gcoff2:-g2} %{gcoff3:-g3} \ +%{membedded-pic}" + +#else +/* not GAS */ +/* Must pass -g0 to the assembler, otherwise it may overwrite our + debug info with its own debug info. */ +/* Must pass -show instead of -v. */ +/* Must pass -G 0 to the assembler, otherwise we may get warnings about + GOT overflow. */ +#define ASM_SPEC "\ +%{!mgas: \ + %{!.s:-nocpp} %{.s: %{cpp} %{nocpp}} \ + %{pipe: %e-pipe is not supported.} \ + %{K}} \ +%{G*} %{EB} %{EL} %{v:-show} \ +%{mips1} %{mips2} %{mips3} %{mips4} \ +%{!mips1: %{!mips2: %{!mips3: %{!mips4: -mips4}}}} \ +%{noasmopt:-O0} %{!noasmopt:%{O:-O2} %{O1:-O2} %{O2:-O2} %{O3:-O3}} \ +-g0 -G 0 %{membedded-pic}" + +#endif + +/* Stuff for constructors. Start here. */ + +#define CONST_SECTION_ASM_OP_32 "\t.rdata" +#define CONST_SECTION_ASM_OP_64 ".section\t.rodata" +#define CTORS_SECTION_ASM_OP ".section\t.ctors,1,2,0,4" +#define DTORS_SECTION_ASM_OP ".section\t.dtors,1,2,0,4" + +/* This is the pseudo-op used to generate a 32-bit word of data with a + specific value in some section. This is the same for all known svr4 + assemblers. */ + +#define INT_ASM_OP ".word" + +/* A default list of other sections which we might be "in" at any given + time. For targets that use additional sections (e.g. .tdesc) you + should override this definition in the target-specific file which + includes this file. */ + +#undef EXTRA_SECTIONS +#define EXTRA_SECTIONS in_sdata, in_rdata, in_const, in_ctors, in_dtors, in_bss + +/* A default list of extra section function definitions. For targets + that use additional sections (e.g. .tdesc) you should override this + definition in the target-specific file which includes this file. */ + +/* ??? rdata_section is now same as svr4 const_section. */ + +#undef EXTRA_SECTION_FUNCTIONS +#define EXTRA_SECTION_FUNCTIONS \ +void \ +sdata_section () \ +{ \ + if (in_section != in_sdata) \ + { \ + fprintf (asm_out_file, "%s\n", SDATA_SECTION_ASM_OP); \ + in_section = in_sdata; \ + } \ +} \ + \ +void \ +rdata_section () \ +{ \ + if (in_section != in_rdata) \ + { \ + if (mips_isa >= 3) \ + fprintf (asm_out_file, "%s\n", CONST_SECTION_ASM_OP_64); \ + else \ + fprintf (asm_out_file, "%s\n", CONST_SECTION_ASM_OP_32); \ + in_section = in_rdata; \ + } \ +} \ + CTORS_SECTION_FUNCTION \ + DTORS_SECTION_FUNCTION + +#define CTORS_SECTION_FUNCTION \ +void \ +ctors_section () \ +{ \ + if (in_section != in_ctors) \ + { \ + fprintf (asm_out_file, "%s\n", CTORS_SECTION_ASM_OP); \ + in_section = in_ctors; \ + } \ +} + +#define DTORS_SECTION_FUNCTION \ +void \ +dtors_section () \ +{ \ + if (in_section != in_dtors) \ + { \ + fprintf (asm_out_file, "%s\n", DTORS_SECTION_ASM_OP); \ + in_section = in_dtors; \ + } \ +} + +/* A C statement (sans semicolon) to output an element in the table of + global constructors. */ +#define ASM_OUTPUT_CONSTRUCTOR(FILE,NAME) \ + do { \ + ctors_section (); \ + fprintf (FILE, "\t%s\t ", INT_ASM_OP); \ + assemble_name (FILE, NAME); \ + fprintf (FILE, "\n"); \ + } while (0) + +/* A C statement (sans semicolon) to output an element in the table of + global destructors. */ +#define ASM_OUTPUT_DESTRUCTOR(FILE,NAME) \ + do { \ + dtors_section (); \ + fprintf (FILE, "\t%s\t ", INT_ASM_OP); \ + assemble_name (FILE, NAME); \ + fprintf (FILE, "\n"); \ + } while (0) + +/* Stuff for constructors. End here. */ + +/* ??? Perhaps just include svr4.h in this file? */ + +/* ??? SGI assembler may core dump when compiling with -g. + Sometimes as succeeds, but then we get a linker error. (cmds.c in 072.sc) + Getting rid of .file solves both problems. */ +#undef ASM_OUTPUT_FILENAME +#define ASM_OUTPUT_FILENAME(STREAM, NUM_SOURCE_FILENAMES, NAME) \ +do \ + { \ + fprintf (STREAM, "\t#.file\t%d ", NUM_SOURCE_FILENAMES); \ + output_quoted_string (STREAM, NAME); \ + fputs ("\n", STREAM); \ + } \ +while (0) + +/* ??? SGI assembler gives warning whenever .lcomm is used. */ +#undef ASM_OUTPUT_LOCAL +#define ASM_OUTPUT_ALIGNED_LOCAL(STREAM, NAME, SIZE, ALIGN) \ +do \ + { \ + if (mips_isa >= 3) \ + { \ + fputs ("\t.section\t.bss\n", STREAM); \ + ASM_DECLARE_OBJECT_NAME (STREAM, NAME, 0); \ + ASM_OUTPUT_ALIGN (STREAM, floor_log2 (ALIGN / BITS_PER_UNIT)); \ + ASM_OUTPUT_SKIP (STREAM, SIZE); \ + fprintf (STREAM, "\t%s\n", POPSECTION_ASM_OP); \ + } \ + else \ + mips_declare_object (STREAM, NAME, "\n\t.lcomm\t", ",%u\n", (SIZE)); \ + } \ +while (0) + +#undef ASM_OUTPUT_INTERNAL_LABEL +#define ASM_OUTPUT_INTERNAL_LABEL(STREAM,PREFIX,NUM) \ + fprintf (STREAM, ".%s%d:\n", PREFIX, NUM) + +/* This is how to store into the string LABEL + the symbol_ref name of an internal numbered label where + PREFIX is the class of label and NUM is the number within the class. + This is suitable for output with `assemble_name'. */ + +#undef ASM_GENERATE_INTERNAL_LABEL +#define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \ + sprintf (LABEL, "*.%s%d", PREFIX, NUM) + +#undef STARTFILE_SPEC +/* Profiling is supported via libprof1.a not -lc_p as in Irix 3. */ +#undef STARTFILE_SPEC +#define STARTFILE_SPEC \ + "%{mips1:%{pg:gcrt1.o%s}%{!pg:%{p:mcrt1.o%s libprof1.a%s}%{!p:crt1.o%s}}} \ + %{mips2:%{pg:gcrt1.o%s}%{!pg:%{p:mcrt1.o%s libprof1.a%s}%{!p:crt1.o%s}}} \ + %{!mips1:%{!mips2:%{pg:/usr/lib64/gcrt1.o}%{!pg:%{p:/usr/lib64/mcrt1.o /usr/lib64/libprof1.a}%{!p:/usr/lib64/crt1.o}}}}" + +#undef LIB_SPEC +#define LIB_SPEC "%{p:libprof1.a%s}%{pg:libprof1.a%s} -lc" + +#undef ENDFILE_SPEC +#define ENDFILE_SPEC \ + "%{mips1:crtn.o%s}%{mips2:crtn.o%s}%{!mips1:%{!mips2:/usr/lib64/crtn.o}}" + +#undef LINK_SPEC +#define LINK_SPEC "\ +%{G*} %{EB} %{EL} %{mips1} %{mips2} %{mips3} %{mips4} \ +%{bestGnum} %{shared} %{non_shared} \ +%{call_shared} %{no_archive} %{exact_version} \ +%{!shared: %{!non_shared: %{!call_shared: -call_shared -no_unresolved}}} \ +-_SYSTYPE_SVR4" + +/* ??? Debugging does not work. We get many assembler core dumps, + and even some linker core dumps. */ +#undef DBX_DEBUGGING_INFO +#undef SDB_DEBUGGING_INFO +#undef MIPS_DEBUGGING_INFO +#undef DWARF_DEBUGGING_INFO +#undef PREFERRED_DEBUGGING_TYPE |